関連する実験動画
Updated: Sep 10, 2025

06:24
Author Spotlight: Advancements in iPSCs and Genetic Disease Research
Published on: October 20, 2023
1.3K
ハイポキシアは,メゼンキマストロマ細胞におけるプラリポテンスのようなミューズ細胞の比率を高め,プラリポテンスの遺伝子発現を上調する
Gen Li1, Masaaki Kitada2, Mari Dezawa3
1Department of Stem Cell Biology and Histology, Tohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai, 980-8575, Miyagi, Japan. li.gen.t6@dc.tohoku.ac.jp.
Scientific reports
|August 25, 2025
まとめ
低酸素症は ミューズ細胞の数と多能性遺伝子発現を著しく増加させる. この費用対効果の高い方法は,潜在的な臨床応用のための ミューズ細胞の拡張を促進します.
科学分野:
- 幹細胞生物学
- 再生医療
- 細胞の代謝
背景:
- ミューズ細胞は多能性のような幹細胞で,様々な組織に存在し,骨髄が予備細胞である.
- メセンキマストロマ細胞 (MSC) には,小さなミューズ細胞が含まれています.
- 臨床試験では,未改変のミューズ細胞の治療の可能性が示されていますが,効率的な拡張が必要です.
研究 の 目的:
- ミューズ細胞の比率,多能性,代謝に対する低酸素の影響を調査する.
- 低毒性条件下でミューズ細胞の膨張を調節するメカニズムを特定する.
- 費用対効果のある ミューズ細胞の拡張のための戦略として低酸素を評価する.
主な方法:
- 異なる酸素条件下で ミューズ細胞の培養
- フローサイトメトリーを用いたミューズ細胞の割合の分析.
- 多能性遺伝子発現の評価について
- 細胞呼吸と糖分分解のシフトを決定する代謝プロフィール
主要な成果:
- 主にHIF2αによって媒介されるMuse細胞の割合が約2倍になった.
- プラリポテンシー遺伝子の発現は,潜在的にmicroRNA let-7によって,低酸素状態で強化された.
- 細胞の代謝は酸化性リン酸化から糖分解に変化し,幹の維持を促した.
結論:
- ミューズ細胞を拡張するための効果的で費用対効果の高い戦略です.
- ミューズ細胞の多能性を強化し,その代謝を変化させます.
- これらの発見は,再生療法のための低酸素拡張ミューズ細胞の臨床的可能性を裏付けています.
関連する概念動画
Somatic to iPS Cell Reprogramming
2.3K
Reprogramming alters the gene expression in somatic cells, transforming them into induced pluripotent stem (iPS) cells over several generations. Scientists can reprogram cells by introducing genes for four transcription factors—Oct4, Sox2, Klf4, and c-Myc (OSKM) by viral or non-viral methods. These factors are also known as Yamanaka factors after Shinya Yamanaka, who first generated iPS cells using mouse skin cells. Yamanaka was awarded the Nobel Prize in Physiology or Medicine in 2012...
2.3K
Maintenance of the ES Cell State
2.2K
The cells of the blastocyst inner cell mass only remain pluripotent for a short time. This state of pluripotency and self-renewal can be maintained in embryonic stem (ES) cell culture by adding specific chemicals or growth factors to ensure the cells can continue dividing and later differentiate into different cell types. In some cases, the cells are grown on a feeder layer of differentiated cells, which provides the growth factors and extracellular matrix components necessary for stem cell...
2.2K
Chromatin Modification in iPS Cells
1.9K
Chromatin modification alters gene expression; therefore, scientists can add histone-modifying enzymes, histone variants, and chromatin remodeling complexes to somatic cells to aid reprogramming into pluripotent stem (iPS) cells.
Compact chromatin makes reprogramming difficult. Enzymes, such as histone demethylases and acetyltransferases, are often added during reprogramming to loosen the chromatin, making the DNA more accessible to transcription factors. Molecules that inhibit histone...
Compact chromatin makes reprogramming difficult. Enzymes, such as histone demethylases and acetyltransferases, are often added during reprogramming to loosen the chromatin, making the DNA more accessible to transcription factors. Molecules that inhibit histone...
1.9K
Mesenchymal Stem Cells
5.0K
Mesenchymal stem cells (MSCs) are adult stem cells that can differentiate into most connective tissue cell types, except for hematopoietic cells, depending upon the source of MSCs. For example, bone-marrow-derived MSCs (BM-MSCs) can differentiate into osteocytes, hepatocytes, and pancreatic and neuronal cells. MSCs can be isolated from various sources such as bone marrow, placenta, adipose tissue, teeth, and Wharton’s jelly, a gelatinous substance in the umbilical cord. The ease of their...
5.0K
Induced Pluripotent Stem Cells
4.4K
Stem cells are undifferentiated cells that divide and produce different cell types. Ordinarily, cells that have differentiated into a specific cell type are terminally differentiated; however, scientists have found a way to reprogram these mature cells so that they dedifferentiate and return to an unspecialized, proliferative state. These cells are pluripotent like embryonic stem cells—able to produce all cell types—and are called induced pluripotent stem cells (iPSCs).
Somatic...
Somatic...
4.4K

